Fix (double) quotes in the HTML output

(Double) quotes could not be parsed in JavaScript/JSON, as the strings were ending prematurely resulting in parse errors

lib/ruby-bbcode/templates/bbcode_errors_template.rb

@@ -59,7 +59,9 @@ def get_between
       end
 
       def self.error_attribute(errors)
-        "data-bbcode-errors='#{JSON.fast_generate(errors)}'"
+        # Escape (double) quotes so the JSON can be generated properly (and parsed properly by JavaScript)
+        escapedErrors = errors.map { |error| error.gsub("\"",""").gsub("'", "'")}
+        "data-bbcode-errors='#{JSON.fast_generate(escapedErrors)}'"
       end
   end
 end